drivers/net/wireless/ath/ath9k/mac.h

   1 /*
   2  * Copyright (c) 2008-2011 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef MAC_H
  18 #define MAC_H
  19
  20 #define RXSTATUS_RATE(ah, ads) (AR_SREV_5416_20_OR_LATER(ah) ?          \
  21                                 MS(ads->ds_rxstatus0, AR_RxRate) :      \
  22                                 (ads->ds_rxstatus3 >> 2) & 0xFF)
  23
  24 #define set11nTries(_series, _index) \
  25         (SM((_series)[_index].Tries, AR_XmitDataTries##_index))
  26
  27 #define set11nRate(_series, _index) \
  28         (SM((_series)[_index].Rate, AR_XmitRate##_index))
  29
  30 #define set11nPktDurRTSCTS(_series, _index)                             \
  31         (SM((_series)[_index].PktDuration, AR_PacketDur##_index) |      \
  32          ((_series)[_index].RateFlags & ATH9K_RATESERIES_RTS_CTS   ?    \
  33           AR_RTSCTSQual##_index : 0))
  34
  35 #define set11nRateFlags(_series, _index)                                \
  36         (((_series)[_index].RateFlags & ATH9K_RATESERIES_2040 ?         \
  37           AR_2040_##_index : 0)                                         \
  38          |((_series)[_index].RateFlags & ATH9K_RATESERIES_HALFGI ?      \
  39            AR_GI##_index : 0)                                           \
  40          |((_series)[_index].RateFlags & ATH9K_RATESERIES_STBC ?        \
  41            AR_STBC##_index : 0)                                         \
  42          |SM((_series)[_index].ChSel, AR_ChainSel##_index))
  43
  44 #define CCK_SIFS_TIME        10
  45 #define CCK_PREAMBLE_BITS   144
  46 #define CCK_PLCP_BITS        48
  47
  48 #define OFDM_SIFS_TIME        16
  49 #define OFDM_PREAMBLE_TIME    20
  50 #define OFDM_PLCP_BITS        22
  51 #define OFDM_SYMBOL_TIME      4
  52
  53 #define OFDM_SIFS_TIME_HALF     32
  54 #define OFDM_PREAMBLE_TIME_HALF 40
  55 #define OFDM_PLCP_BITS_HALF     22
  56 #define OFDM_SYMBOL_TIME_HALF   8
  57
  58 #define OFDM_SIFS_TIME_QUARTER      64
  59 #define OFDM_PREAMBLE_TIME_QUARTER  80
  60 #define OFDM_PLCP_BITS_QUARTER      22
  61 #define OFDM_SYMBOL_TIME_QUARTER    16
  62
  63 #define INIT_AIFS       2
  64 #define INIT_CWMIN      15
  65 #define INIT_CWMIN_11B  31
  66 #define INIT_CWMAX      1023
  67 #define INIT_SH_RETRY   10
  68 #define INIT_LG_RETRY   10
  69 #define INIT_SSH_RETRY  32
  70 #define INIT_SLG_RETRY  32
  71
  72 #define ATH9K_SLOT_TIME_6 6
  73 #define ATH9K_SLOT_TIME_9 9
  74 #define ATH9K_SLOT_TIME_20 20
  75
  76 #define ATH9K_TXERR_XRETRY         0x01
  77 #define ATH9K_TXERR_FILT           0x02
  78 #define ATH9K_TXERR_FIFO           0x04
  79 #define ATH9K_TXERR_XTXOP          0x08
  80 #define ATH9K_TXERR_TIMER_EXPIRED  0x10
  81 #define ATH9K_TX_ACKED             0x20
  82 #define ATH9K_TXERR_MASK                                                \
  83         (ATH9K_TXERR_XRETRY | ATH9K_TXERR_FILT | ATH9K_TXERR_FIFO |     \
  84          ATH9K_TXERR_XTXOP | ATH9K_TXERR_TIMER_EXPIRED)
  85
  86 #define ATH9K_TX_BA                0x01
  87 #define ATH9K_TX_PWRMGMT           0x02
  88 #define ATH9K_TX_DESC_CFG_ERR      0x04
  89 #define ATH9K_TX_DATA_UNDERRUN     0x08
  90 #define ATH9K_TX_DELIM_UNDERRUN    0x10
  91 #define ATH9K_TX_SW_FILTERED       0x80
  92
  93 /* 64 bytes */
  94 #define MIN_TX_FIFO_THRESHOLD   0x1
  95
  96 /*
  97  * Single stream device AR9285 and AR9271 require 2 KB
  98  * to work around a hardware issue, all other devices
  99  * have can use the max 4 KB limit.
 100  */
 101 #define MAX_TX_FIFO_THRESHOLD   ((4096 / 64) - 1)
 102
 103 struct ath_tx_status {
 104         u32 ts_tstamp;
 105         u16 ts_seqnum;
 106         u8 ts_status;
 107         u8 ts_rateindex;
 108         int8_t ts_rssi;
 109         u8 ts_shortretry;
 110         u8 ts_longretry;
 111         u8 ts_virtcol;
 112         u8 ts_flags;
 113         int8_t ts_rssi_ctl0;
 114         int8_t ts_rssi_ctl1;
 115         int8_t ts_rssi_ctl2;
 116         int8_t ts_rssi_ext0;
 117         int8_t ts_rssi_ext1;
 118         int8_t ts_rssi_ext2;
 119         u8 qid;
 120         u16 desc_id;
 121         u8 tid;
 122         u32 ba_low;
 123         u32 ba_high;
 124         u32 evm0;
 125         u32 evm1;
 126         u32 evm2;
 127 };
 128
 129 struct ath_rx_status {
 130         u32 rs_tstamp;
 131         u16 rs_datalen;
 132         u8 rs_status;
 133         u8 rs_phyerr;
 134         int8_t rs_rssi;
 135         u8 rs_keyix;
 136         u8 rs_rate;
 137         u8 rs_antenna;
 138         u8 rs_more;
 139         int8_t rs_rssi_ctl0;
 140         int8_t rs_rssi_ctl1;
 141         int8_t rs_rssi_ctl2;
 142         int8_t rs_rssi_ext0;
 143         int8_t rs_rssi_ext1;
 144         int8_t rs_rssi_ext2;
 145         u8 rs_isaggr;
 146         u8 rs_moreaggr;
 147         u8 rs_num_delims;
 148         u8 rs_flags;
 149         u32 evm0;
 150         u32 evm1;
 151         u32 evm2;
 152         u32 evm3;
 153         u32 evm4;
 154 };
 155
 156 struct ath_htc_rx_status {
 157         __be64 rs_tstamp;
 158         __be16 rs_datalen;
 159         u8 rs_status;
 160         u8 rs_phyerr;
 161         int8_t rs_rssi;
 162         int8_t rs_rssi_ctl0;
 163         int8_t rs_rssi_ctl1;
 164         int8_t rs_rssi_ctl2;
 165         int8_t rs_rssi_ext0;
 166         int8_t rs_rssi_ext1;
 167         int8_t rs_rssi_ext2;
 168         u8 rs_keyix;
 169         u8 rs_rate;
 170         u8 rs_antenna;
 171         u8 rs_more;
 172         u8 rs_isaggr;
 173         u8 rs_moreaggr;
 174         u8 rs_num_delims;
 175         u8 rs_flags;
 176         u8 rs_dummy;
 177         __be32 evm0;
 178         __be32 evm1;
 179         __be32 evm2;
 180 };
 181
 182 #define ATH9K_RXERR_CRC           0x01
 183 #define ATH9K_RXERR_PHY           0x02
 184 #define ATH9K_RXERR_FIFO          0x04
 185 #define ATH9K_RXERR_DECRYPT       0x08
 186 #define ATH9K_RXERR_MIC           0x10
 187
 188 #define ATH9K_RX_MORE             0x01
 189 #define ATH9K_RX_MORE_AGGR        0x02
 190 #define ATH9K_RX_GI               0x04
 191 #define ATH9K_RX_2040             0x08
 192 #define ATH9K_RX_DELIM_CRC_PRE    0x10
 193 #define ATH9K_RX_DELIM_CRC_POST   0x20
 194 #define ATH9K_RX_DECRYPT_BUSY     0x40
 195
 196 #define ATH9K_RXKEYIX_INVALID   ((u8)-1)
 197 #define ATH9K_TXKEYIX_INVALID   ((u32)-1)
 198
 199 enum ath9k_phyerr {
 200         ATH9K_PHYERR_UNDERRUN             = 0,  /* Transmit underrun */
 201         ATH9K_PHYERR_TIMING               = 1,  /* Timing error */
 202         ATH9K_PHYERR_PARITY               = 2,  /* Illegal parity */
 203         ATH9K_PHYERR_RATE                 = 3,  /* Illegal rate */
 204         ATH9K_PHYERR_LENGTH               = 4,  /* Illegal length */
 205         ATH9K_PHYERR_RADAR                = 5,  /* Radar detect */
 206         ATH9K_PHYERR_SERVICE              = 6,  /* Illegal service */
 207         ATH9K_PHYERR_TOR                  = 7,  /* Transmit override receive */
 208
 209         ATH9K_PHYERR_OFDM_TIMING          = 17,
 210         ATH9K_PHYERR_OFDM_SIGNAL_PARITY   = 18,
 211         ATH9K_PHYERR_OFDM_RATE_ILLEGAL    = 19,
 212         ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL  = 20,
 213         ATH9K_PHYERR_OFDM_POWER_DROP      = 21,
 214         ATH9K_PHYERR_OFDM_SERVICE         = 22,
 215         ATH9K_PHYERR_OFDM_RESTART         = 23,
 216         ATH9K_PHYERR_FALSE_RADAR_EXT      = 24,
 217
 218         ATH9K_PHYERR_CCK_TIMING           = 25,
 219         ATH9K_PHYERR_CCK_HEADER_CRC       = 26,
 220         ATH9K_PHYERR_CCK_RATE_ILLEGAL     = 27,
 221         ATH9K_PHYERR_CCK_SERVICE          = 30,
 222         ATH9K_PHYERR_CCK_RESTART          = 31,
 223         ATH9K_PHYERR_CCK_LENGTH_ILLEGAL   = 32,
 224         ATH9K_PHYERR_CCK_POWER_DROP       = 33,
 225
 226         ATH9K_PHYERR_HT_CRC_ERROR         = 34,
 227         ATH9K_PHYERR_HT_LENGTH_ILLEGAL    = 35,
 228         ATH9K_PHYERR_HT_RATE_ILLEGAL      = 36,
 229
 230         ATH9K_PHYERR_MAX                  = 37,
 231 };
 232
 233 struct ath_desc {
 234         u32 ds_link;
 235         u32 ds_data;
 236         u32 ds_ctl0;
 237         u32 ds_ctl1;
 238         u32 ds_hw[20];
 239         void *ds_vdata;
 240 } __packed __aligned(4);
 241
 242 #define ATH9K_TXDESC_NOACK              0x0002
 243 #define ATH9K_TXDESC_RTSENA             0x0004
 244 #define ATH9K_TXDESC_CTSENA             0x0008
 245 /* ATH9K_TXDESC_INTREQ forces a tx interrupt to be generated for
 246  * the descriptor its marked on.  We take a tx interrupt to reap
 247  * descriptors when the h/w hits an EOL condition or
 248  * when the descriptor is specifically marked to generate
 249  * an interrupt with this flag. Descriptors should be
 250  * marked periodically to insure timely replenishing of the
 251  * supply needed for sending frames. Defering interrupts
 252  * reduces system load and potentially allows more concurrent
 253  * work to be done but if done to aggressively can cause
 254  * senders to backup. When the hardware queue is left too
 255  * large rate control information may also be too out of
 256  * date. An Alternative for this is TX interrupt mitigation
 257  * but this needs more testing. */
 258 #define ATH9K_TXDESC_INTREQ             0x0010
 259 #define ATH9K_TXDESC_VEOL               0x0020
 260 #define ATH9K_TXDESC_EXT_ONLY           0x0040
 261 #define ATH9K_TXDESC_EXT_AND_CTL        0x0080
 262 #define ATH9K_TXDESC_VMF                0x0100
 263 #define ATH9K_TXDESC_FRAG_IS_ON         0x0200
 264 #define ATH9K_TXDESC_LOWRXCHAIN         0x0400
 265 #define ATH9K_TXDESC_LDPC               0x00010000
 266
 267 #define ATH9K_RXDESC_INTREQ             0x0020
 268
 269 struct ar5416_desc {
 270         u32 ds_link;
 271         u32 ds_data;
 272         u32 ds_ctl0;
 273         u32 ds_ctl1;
 274         union {
 275                 struct {
 276                         u32 ctl2;
 277                         u32 ctl3;
 278                         u32 ctl4;
 279                         u32 ctl5;
 280                         u32 ctl6;
 281                         u32 ctl7;
 282                         u32 ctl8;
 283                         u32 ctl9;
 284                         u32 ctl10;
 285                         u32 ctl11;
 286                         u32 status0;
 287                         u32 status1;
 288                         u32 status2;
 289                         u32 status3;
 290                         u32 status4;
 291                         u32 status5;
 292                         u32 status6;
 293                         u32 status7;
 294                         u32 status8;
 295                         u32 status9;
 296                 } tx;
 297                 struct {
 298                         u32 status0;
 299                         u32 status1;
 300                         u32 status2;
 301                         u32 status3;
 302                         u32 status4;
 303                         u32 status5;
 304                         u32 status6;
 305                         u32 status7;
 306                         u32 status8;
 307                 } rx;
 308         } u;
 309 } __packed __aligned(4);
 310
 311 #define AR5416DESC(_ds)         ((struct ar5416_desc *)(_ds))
 312 #define AR5416DESC_CONST(_ds)   ((const struct ar5416_desc *)(_ds))
 313
 314 #define ds_ctl2     u.tx.ctl2
 315 #define ds_ctl3     u.tx.ctl3
 316 #define ds_ctl4     u.tx.ctl4
 317 #define ds_ctl5     u.tx.ctl5
 318 #define ds_ctl6     u.tx.ctl6
 319 #define ds_ctl7     u.tx.ctl7
 320 #define ds_ctl8     u.tx.ctl8
 321 #define ds_ctl9     u.tx.ctl9
 322 #define ds_ctl10    u.tx.ctl10
 323 #define ds_ctl11    u.tx.ctl11
 324
 325 #define ds_txstatus0    u.tx.status0
 326 #define ds_txstatus1    u.tx.status1
 327 #define ds_txstatus2    u.tx.status2
 328 #define ds_txstatus3    u.tx.status3
 329 #define ds_txstatus4    u.tx.status4
 330 #define ds_txstatus5    u.tx.status5
 331 #define ds_txstatus6    u.tx.status6
 332 #define ds_txstatus7    u.tx.status7
 333 #define ds_txstatus8    u.tx.status8
 334 #define ds_txstatus9    u.tx.status9
 335
 336 #define ds_rxstatus0    u.rx.status0
 337 #define ds_rxstatus1    u.rx.status1
 338 #define ds_rxstatus2    u.rx.status2
 339 #define ds_rxstatus3    u.rx.status3
 340 #define ds_rxstatus4    u.rx.status4
 341 #define ds_rxstatus5    u.rx.status5
 342 #define ds_rxstatus6    u.rx.status6
 343 #define ds_rxstatus7    u.rx.status7
 344 #define ds_rxstatus8    u.rx.status8
 345
 346 #define AR_FrameLen         0x00000fff
 347 #define AR_VirtMoreFrag     0x00001000
 348 #define AR_TxCtlRsvd00      0x0000e000
 349 #define AR_XmitPower        0x003f0000
 350 #define AR_XmitPower_S      16
 351 #define AR_RTSEnable        0x00400000
 352 #define AR_VEOL             0x00800000
 353 #define AR_ClrDestMask      0x01000000
 354 #define AR_TxCtlRsvd01      0x1e000000
 355 #define AR_TxIntrReq        0x20000000
 356 #define AR_DestIdxValid     0x40000000
 357 #define AR_CTSEnable        0x80000000
 358
 359 #define AR_TxMore           0x00001000
 360 #define AR_DestIdx          0x000fe000
 361 #define AR_DestIdx_S        13
 362 #define AR_FrameType        0x00f00000
 363 #define AR_FrameType_S      20
 364 #define AR_NoAck            0x01000000
 365 #define AR_InsertTS         0x02000000
 366 #define AR_CorruptFCS       0x04000000
 367 #define AR_ExtOnly          0x08000000
 368 #define AR_ExtAndCtl        0x10000000
 369 #define AR_MoreAggr         0x20000000
 370 #define AR_IsAggr           0x40000000
 371
 372 #define AR_BurstDur         0x00007fff
 373 #define AR_BurstDur_S       0
 374 #define AR_DurUpdateEna     0x00008000
 375 #define AR_XmitDataTries0   0x000f0000
 376 #define AR_XmitDataTries0_S 16
 377 #define AR_XmitDataTries1   0x00f00000
 378 #define AR_XmitDataTries1_S 20
 379 #define AR_XmitDataTries2   0x0f000000
 380 #define AR_XmitDataTries2_S 24
 381 #define AR_XmitDataTries3   0xf0000000
 382 #define AR_XmitDataTries3_S 28
 383
 384 #define AR_XmitRate0        0x000000ff
 385 #define AR_XmitRate0_S      0
 386 #define AR_XmitRate1        0x0000ff00
 387 #define AR_XmitRate1_S      8
 388 #define AR_XmitRate2        0x00ff0000
 389 #define AR_XmitRate2_S      16
 390 #define AR_XmitRate3        0xff000000
 391 #define AR_XmitRate3_S      24
 392
 393 #define AR_PacketDur0       0x00007fff
 394 #define AR_PacketDur0_S     0
 395 #define AR_RTSCTSQual0      0x00008000
 396 #define AR_PacketDur1       0x7fff0000
 397 #define AR_PacketDur1_S     16
 398 #define AR_RTSCTSQual1      0x80000000
 399
 400 #define AR_PacketDur2       0x00007fff
 401 #define AR_PacketDur2_S     0
 402 #define AR_RTSCTSQual2      0x00008000
 403 #define AR_PacketDur3       0x7fff0000
 404 #define AR_PacketDur3_S     16
 405 #define AR_RTSCTSQual3      0x80000000
 406
 407 #define AR_AggrLen          0x0000ffff
 408 #define AR_AggrLen_S        0
 409 #define AR_TxCtlRsvd60      0x00030000
 410 #define AR_PadDelim         0x03fc0000
 411 #define AR_PadDelim_S       18
 412 #define AR_EncrType         0x0c000000
 413 #define AR_EncrType_S       26
 414 #define AR_TxCtlRsvd61      0xf0000000
 415 #define AR_LDPC             0x80000000
 416
 417 #define AR_2040_0           0x00000001
 418 #define AR_GI0              0x00000002
 419 #define AR_ChainSel0        0x0000001c
 420 #define AR_ChainSel0_S      2
 421 #define AR_2040_1           0x00000020
 422 #define AR_GI1              0x00000040
 423 #define AR_ChainSel1        0x00000380
 424 #define AR_ChainSel1_S      7
 425 #define AR_2040_2           0x00000400
 426 #define AR_GI2              0x00000800
 427 #define AR_ChainSel2        0x00007000
 428 #define AR_ChainSel2_S      12
 429 #define AR_2040_3           0x00008000
 430 #define AR_GI3              0x00010000
 431 #define AR_ChainSel3        0x000e0000
 432 #define AR_ChainSel3_S      17
 433 #define AR_RTSCTSRate       0x0ff00000
 434 #define AR_RTSCTSRate_S     20
 435 #define AR_STBC0            0x10000000
 436 #define AR_STBC1            0x20000000
 437 #define AR_STBC2            0x40000000
 438 #define AR_STBC3            0x80000000
 439
 440 #define AR_TxRSSIAnt00      0x000000ff
 441 #define AR_TxRSSIAnt00_S    0
 442 #define AR_TxRSSIAnt01      0x0000ff00
 443 #define AR_TxRSSIAnt01_S    8
 444 #define AR_TxRSSIAnt02      0x00ff0000
 445 #define AR_TxRSSIAnt02_S    16
 446 #define AR_TxStatusRsvd00   0x3f000000
 447 #define AR_TxBaStatus       0x40000000
 448 #define AR_TxStatusRsvd01   0x80000000
 449
 450 /*
 451  * AR_FrmXmitOK - Frame transmission success flag. If set, the frame was
 452  * transmitted successfully. If clear, no ACK or BA was received to indicate
 453  * successful transmission when we were expecting an ACK or BA.
 454  */
 455 #define AR_FrmXmitOK            0x00000001
 456 #define AR_ExcessiveRetries     0x00000002
 457 #define AR_FIFOUnderrun         0x00000004
 458 #define AR_Filtered             0x00000008
 459 #define AR_RTSFailCnt           0x000000f0
 460 #define AR_RTSFailCnt_S         4
 461 #define AR_DataFailCnt          0x00000f00
 462 #define AR_DataFailCnt_S        8
 463 #define AR_VirtRetryCnt         0x0000f000
 464 #define AR_VirtRetryCnt_S       12
 465 #define AR_TxDelimUnderrun      0x00010000
 466 #define AR_TxDataUnderrun       0x00020000
 467 #define AR_DescCfgErr           0x00040000
 468 #define AR_TxTimerExpired       0x00080000
 469 #define AR_TxStatusRsvd10       0xfff00000
 470
 471 #define AR_SendTimestamp    ds_txstatus2
 472 #define AR_BaBitmapLow      ds_txstatus3
 473 #define AR_BaBitmapHigh     ds_txstatus4
 474
 475 #define AR_TxRSSIAnt10      0x000000ff
 476 #define AR_TxRSSIAnt10_S    0
 477 #define AR_TxRSSIAnt11      0x0000ff00
 478 #define AR_TxRSSIAnt11_S    8
 479 #define AR_TxRSSIAnt12      0x00ff0000
 480 #define AR_TxRSSIAnt12_S    16
 481 #define AR_TxRSSICombined   0xff000000
 482 #define AR_TxRSSICombined_S 24
 483
 484 #define AR_TxTid        0xf0000000
 485 #define AR_TxTid_S      28
 486
 487 #define AR_TxEVM0           ds_txstatus5
 488 #define AR_TxEVM1           ds_txstatus6
 489 #define AR_TxEVM2           ds_txstatus7
 490
 491 #define AR_TxDone           0x00000001
 492 #define AR_SeqNum           0x00001ffe
 493 #define AR_SeqNum_S         1
 494 #define AR_TxStatusRsvd80   0x0001e000
 495 #define AR_TxOpExceeded     0x00020000
 496 #define AR_TxStatusRsvd81   0x001c0000
 497 #define AR_FinalTxIdx       0x00600000
 498 #define AR_FinalTxIdx_S     21
 499 #define AR_TxStatusRsvd82   0x01800000
 500 #define AR_PowerMgmt        0x02000000
 501 #define AR_TxStatusRsvd83   0xfc000000
 502
 503 #define AR_RxCTLRsvd00  0xffffffff
 504
 505 #define AR_RxCtlRsvd00  0x00001000
 506 #define AR_RxIntrReq    0x00002000
 507 #define AR_RxCtlRsvd01  0xffffc000
 508
 509 #define AR_RxRSSIAnt00      0x000000ff
 510 #define AR_RxRSSIAnt00_S    0
 511 #define AR_RxRSSIAnt01      0x0000ff00
 512 #define AR_RxRSSIAnt01_S    8
 513 #define AR_RxRSSIAnt02      0x00ff0000
 514 #define AR_RxRSSIAnt02_S    16
 515 #define AR_RxRate           0xff000000
 516 #define AR_RxRate_S         24
 517 #define AR_RxStatusRsvd00   0xff000000
 518
 519 #define AR_DataLen          0x00000fff
 520 #define AR_RxMore           0x00001000
 521 #define AR_NumDelim         0x003fc000
 522 #define AR_NumDelim_S       14
 523 #define AR_RxStatusRsvd10   0xff800000
 524
 525 #define AR_RcvTimestamp     ds_rxstatus2
 526
 527 #define AR_GI               0x00000001
 528 #define AR_2040             0x00000002
 529 #define AR_Parallel40       0x00000004
 530 #define AR_Parallel40_S     2
 531 #define AR_RxStatusRsvd30   0x000000f8
 532 #define AR_RxAntenna        0xffffff00
 533 #define AR_RxAntenna_S      8
 534
 535 #define AR_RxRSSIAnt10            0x000000ff
 536 #define AR_RxRSSIAnt10_S          0
 537 #define AR_RxRSSIAnt11            0x0000ff00
 538 #define AR_RxRSSIAnt11_S          8
 539 #define AR_RxRSSIAnt12            0x00ff0000
 540 #define AR_RxRSSIAnt12_S          16
 541 #define AR_RxRSSICombined         0xff000000
 542 #define AR_RxRSSICombined_S       24
 543
 544 #define AR_RxEVM0           ds_rxstatus4
 545 #define AR_RxEVM1           ds_rxstatus5
 546 #define AR_RxEVM2           ds_rxstatus6
 547
 548 #define AR_RxDone           0x00000001
 549 #define AR_RxFrameOK        0x00000002
 550 #define AR_CRCErr           0x00000004
 551 #define AR_DecryptCRCErr    0x00000008
 552 #define AR_PHYErr           0x00000010
 553 #define AR_MichaelErr       0x00000020
 554 #define AR_PreDelimCRCErr   0x00000040
 555 #define AR_RxStatusRsvd70   0x00000080
 556 #define AR_RxKeyIdxValid    0x00000100
 557 #define AR_KeyIdx           0x0000fe00
 558 #define AR_KeyIdx_S         9
 559 #define AR_PHYErrCode       0x0000ff00
 560 #define AR_PHYErrCode_S     8
 561 #define AR_RxMoreAggr       0x00010000
 562 #define AR_RxAggr           0x00020000
 563 #define AR_PostDelimCRCErr  0x00040000
 564 #define AR_RxStatusRsvd71   0x3ff80000
 565 #define AR_DecryptBusyErr   0x40000000
 566 #define AR_KeyMiss          0x80000000
 567
 568 enum ath9k_tx_queue {
 569         ATH9K_TX_QUEUE_INACTIVE = 0,
 570         ATH9K_TX_QUEUE_DATA,
 571         ATH9K_TX_QUEUE_BEACON,
 572         ATH9K_TX_QUEUE_CAB,
 573         ATH9K_TX_QUEUE_UAPSD,
 574         ATH9K_TX_QUEUE_PSPOLL
 575 };
 576
 577 #define ATH9K_NUM_TX_QUEUES 10
 578
 579 /* Used as a queue subtype instead of a WMM AC */
 580 #define ATH9K_WME_UPSD  4
 581
 582 enum ath9k_tx_queue_flags {
 583         TXQ_FLAG_TXOKINT_ENABLE = 0x0001,
 584         TXQ_FLAG_TXERRINT_ENABLE = 0x0001,
 585         TXQ_FLAG_TXDESCINT_ENABLE = 0x0002,
 586         TXQ_FLAG_TXEOLINT_ENABLE = 0x0004,
 587         TXQ_FLAG_TXURNINT_ENABLE = 0x0008,
 588         TXQ_FLAG_BACKOFF_DISABLE = 0x0010,
 589         TXQ_FLAG_COMPRESSION_ENABLE = 0x0020,
 590         TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE = 0x0040,
 591         TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE = 0x0080,
 592 };
 593
 594 #define ATH9K_TXQ_USEDEFAULT ((u32) -1)
 595 #define ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS 0x00000001
 596
 597 #define ATH9K_DECOMP_MASK_SIZE     128
 598 #define ATH9K_READY_TIME_LO_BOUND  50
 599 #define ATH9K_READY_TIME_HI_BOUND  96
 600
 601 enum ath9k_pkt_type {
 602         ATH9K_PKT_TYPE_NORMAL = 0,
 603         ATH9K_PKT_TYPE_ATIM,
 604         ATH9K_PKT_TYPE_PSPOLL,
 605         ATH9K_PKT_TYPE_BEACON,
 606         ATH9K_PKT_TYPE_PROBE_RESP,
 607         ATH9K_PKT_TYPE_CHIRP,
 608         ATH9K_PKT_TYPE_GRP_POLL,
 609 };
 610
 611 struct ath9k_tx_queue_info {
 612         u32 tqi_ver;
 613         enum ath9k_tx_queue tqi_type;
 614         int tqi_subtype;
 615         enum ath9k_tx_queue_flags tqi_qflags;
 616         u32 tqi_priority;
 617         u32 tqi_aifs;
 618         u32 tqi_cwmin;
 619         u32 tqi_cwmax;
 620         u16 tqi_shretry;
 621         u16 tqi_lgretry;
 622         u32 tqi_cbrPeriod;
 623         u32 tqi_cbrOverflowLimit;
 624         u32 tqi_burstTime;
 625         u32 tqi_readyTime;
 626         u32 tqi_physCompBuf;
 627         u32 tqi_intFlags;
 628 };
 629
 630 enum ath9k_rx_filter {
 631         ATH9K_RX_FILTER_UCAST = 0x00000001,
 632         ATH9K_RX_FILTER_MCAST = 0x00000002,
 633         ATH9K_RX_FILTER_BCAST = 0x00000004,
 634         ATH9K_RX_FILTER_CONTROL = 0x00000008,
 635         ATH9K_RX_FILTER_BEACON = 0x00000010,
 636         ATH9K_RX_FILTER_PROM = 0x00000020,
 637         ATH9K_RX_FILTER_PROBEREQ = 0x00000080,
 638         ATH9K_RX_FILTER_PHYERR = 0x00000100,
 639         ATH9K_RX_FILTER_MYBEACON = 0x00000200,
 640         ATH9K_RX_FILTER_COMP_BAR = 0x00000400,
 641         ATH9K_RX_FILTER_COMP_BA = 0x00000800,
 642         ATH9K_RX_FILTER_UNCOMP_BA_BAR = 0x00001000,
 643         ATH9K_RX_FILTER_PSPOLL = 0x00004000,
 644         ATH9K_RX_FILTER_PHYRADAR = 0x00002000,
 645         ATH9K_RX_FILTER_MCAST_BCAST_ALL = 0x00008000,
 646 };
 647
 648 #define ATH9K_RATESERIES_RTS_CTS  0x0001
 649 #define ATH9K_RATESERIES_2040     0x0002
 650 #define ATH9K_RATESERIES_HALFGI   0x0004
 651 #define ATH9K_RATESERIES_STBC     0x0008
 652
 653 struct ath9k_11n_rate_series {
 654         u32 Tries;
 655         u32 Rate;
 656         u32 PktDuration;
 657         u32 ChSel;
 658         u32 RateFlags;
 659 };
 660
 661 enum ath9k_key_type {
 662         ATH9K_KEY_TYPE_CLEAR,
 663         ATH9K_KEY_TYPE_WEP,
 664         ATH9K_KEY_TYPE_AES,
 665         ATH9K_KEY_TYPE_TKIP,
 666 };
 667
 668 struct ath_hw;
 669 struct ath9k_channel;
 670 enum ath9k_int;
 671
 672 u32 ath9k_hw_gettxbuf(struct ath_hw *ah, u32 q);
 673 void ath9k_hw_puttxbuf(struct ath_hw *ah, u32 q, u32 txdp);
 674 void ath9k_hw_txstart(struct ath_hw *ah, u32 q);
 675 void ath9k_hw_cleartxdesc(struct ath_hw *ah, void *ds);
 676 u32 ath9k_hw_numtxpending(struct ath_hw *ah, u32 q);
 677 bool ath9k_hw_updatetxtriglevel(struct ath_hw *ah, bool bIncTrigLevel);
 678 bool ath9k_hw_stop_dma_queue(struct ath_hw *ah, u32 q);
 679 void ath9k_hw_abort_tx_dma(struct ath_hw *ah);
 680 void ath9k_hw_gettxintrtxqs(struct ath_hw *ah, u32 *txqs);
 681 bool ath9k_hw_set_txq_props(struct ath_hw *ah, int q,
 682                             const struct ath9k_tx_queue_info *qinfo);
 683 bool ath9k_hw_get_txq_props(struct ath_hw *ah, int q,
 684                             struct ath9k_tx_queue_info *qinfo);
 685 int ath9k_hw_setuptxqueue(struct ath_hw *ah, enum ath9k_tx_queue type,
 686                           const struct ath9k_tx_queue_info *qinfo);
 687 bool ath9k_hw_releasetxqueue(struct ath_hw *ah, u32 q);
 688 bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q);
 689 int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
 690                         struct ath_rx_status *rs, u64 tsf);
 691 void ath9k_hw_setuprxdesc(struct ath_hw *ah, struct ath_desc *ds,
 692                           u32 size, u32 flags);
 693 bool ath9k_hw_setrxabort(struct ath_hw *ah, bool set);
 694 void ath9k_hw_putrxbuf(struct ath_hw *ah, u32 rxdp);
 695 void ath9k_hw_startpcureceive(struct ath_hw *ah, bool is_scanning);
 696 void ath9k_hw_abortpcurecv(struct ath_hw *ah);
 697 bool ath9k_hw_stopdmarecv(struct ath_hw *ah, bool *reset);
 698 int ath9k_hw_beaconq_setup(struct ath_hw *ah);
 699
 700 /* Interrupt Handling */
 701 bool ath9k_hw_intrpend(struct ath_hw *ah);
 702 void ath9k_hw_set_interrupts(struct ath_hw *ah, enum ath9k_int ints);
 703 void ath9k_hw_enable_interrupts(struct ath_hw *ah);
 704 void ath9k_hw_disable_interrupts(struct ath_hw *ah);
 705
 706 void ar9002_hw_attach_mac_ops(struct ath_hw *ah);
 707
 708 #endif /* MAC_H */